Add 'submodules/AsyncDisplayKit/' from commit '02bedc12816e251ad71777f9d2578329b6d2bef6'

git-subtree-dir: submodules/AsyncDisplayKit
git-subtree-mainline: d06f423e0e
git-subtree-split: 02bedc1281

submodules/AsyncDisplayKit/examples/LayoutSpecExamples/Sample/Utilities.m

@@ -0,0 +1,99 @@
+//
+//  Utilities.m
+//  Texture
+//
+//  Copyright (c) Facebook, Inc. and its affiliates.  All rights reserved.
+//  Changes after 4/13/2017 are: Copyright (c) Pinterest, Inc.  All rights reserved.
+//  Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#import "Utilities.h"
+
+#define StrokeRoundedImages 0
+
+@implementation UIColor (Additions)
+
++ (UIColor *)darkBlueColor
+{
+  return [UIColor colorWithRed:18.0/255.0 green:86.0/255.0 blue:136.0/255.0 alpha:1.0];
+}
+
++ (UIColor *)lightBlueColor
+{
+  return [UIColor colorWithRed:0.0 green:122.0/255.0 blue:1.0 alpha:1.0];
+}
+
+@end
+
+@implementation UIImage (Additions)
+
+- (UIImage *)makeCircularImageWithSize:(CGSize)size withBorderWidth:(CGFloat)width
+{
+  // make a CGRect with the image's size
+  CGRect circleRect = (CGRect) {CGPointZero, size};
+  
+  // begin the image context since we're not in a drawRect:
+  UIGraphicsBeginImageContextWithOptions(circleRect.size, NO, 0);
+  
+  // create a UIBezierPath circle
+  UIBezierPath *circle = [UIBezierPath bezierPathWithRoundedRect:circleRect cornerRadius:circleRect.size.width/2];
+  
+  // clip to the circle
+  [circle addClip];
+  
+  [[UIColor whiteColor] set];
+  [circle fill];
+  
+  // draw the image in the circleRect *AFTER* the context is clipped
+  [self drawInRect:circleRect];
+  
+  // create a border (for white background pictures)
+  if (width > 0) {
+    circle.lineWidth = width;
+    [[UIColor whiteColor] set];
+    [circle stroke];
+  }
+  
+  // get an image from the image context
+  UIImage *roundedImage = UIGraphicsGetImageFromCurrentImageContext();
+  
+  // end the image context since we're not in a drawRect:
+  UIGraphicsEndImageContext();
+  
+  return roundedImage;
+}
+
++ (UIImage *)imageWithSize:(CGSize)size fillColor:(UIColor *)fillColor shapeBlock:(UIBezierPath *(^)(void))shapeBlock
+{
+    UIGraphicsBeginImageContext(size);
+    [fillColor setFill];
+    
+    UIBezierPath *path = shapeBlock();
+    [path addClip];
+    [path fill];
+    
+    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
+    UIGraphicsEndImageContext();
+    
+    return image;
+}
+
+@end
+
+@implementation NSAttributedString (Additions)
+
++ (NSAttributedString *)attributedStringWithString:(NSString *)string fontSize:(CGFloat)size color:(nullable UIColor *)color
+{
+  if (string == nil) {
+    return nil;
+  }
+  
+  NSDictionary *attributes = @{NSForegroundColorAttributeName: color ? : [UIColor blackColor],
+                               NSFontAttributeName: [UIFont boldSystemFontOfSize:size]};
+  NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:string];
+  [attributedString addAttributes:attributes range:NSMakeRange(0, string.length)];
+  
+  return attributedString;
+}
+
+@end